iMac 27 2013 + SSD m2 via USB3 problrm speed read

[gul1ver]

Hello!
IMac 2013 27" i5 3.4Ghz 12Gb 1Tb HDD. Install system Mac os to ssd m2(Kingspec 128gb 2280) via usb3.
Speed read no more 40MB/sec, write 450Mb/sec.
Completed steps to macbook:
1. Formating disk to APFS in MAC OS speed read 40Mb/sec
2. Formating disk to HFS+ in MAC OS speed read 40Mb/sec
3. Formating disk to NTFS in windows speed read 370Mb/sec
4. Formating disk to HFS+ in MAC OS speed read 370Mb/sec
5. Formating disk to APFS in MAC OS speed read 370Mb/sec
6. Install mac os speed read 40Mb/sec ((((.
Maybe someone had similar problems? Or there are settings that need to be done?
On weekends, install the system on the SATA SSD via USB BOX.

 

[cynics]

Boot into recover mode. Use disk utility there and run first aid on the drive. Unmount the drive if its first aid is greyed out. This will run fsck_apfs plus let you know if you have any other problems.

Good luck.